Lasting-machine



2 Sheets-Sheet 1,

' (No Model.)

NI. BROCK.

LASTING MACHINE.

.BPLgtggted Aug. '5, 1.884..,

I /E im?.

(No Model.) 2 Sheets-Sheet 2.

M. BROCK.

LASTING MACHINE. No. 802,885. 253, JyPatemted. Aug. 5, 1884.

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MATTHIAS BROCK, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO MCKAY 8U COPELAND LASTING MACHINE COMPANY, OF PORTLAND, MAINE.

LASTlNG-VIACHINE.

ZCZFICATION forming part of Letters Patent No. 302,885, dated August 5, 188%.

Application filed February 1S, 1884. (No model.)

To all whom t may concern.-

Be it lknown that I, Milrriams BRoox, of Boston, county of Suffolk, State of Massachusetts, have invented an Improvement in Last- 5 ing-Machines, of which the following description, in connection with the accompanying drawings,is a specifica-tion, like'letters on the i drawings representing like parts.

This invention has for its objectcertain imro provements, to be described, whereby the operation of lasting the shank and fore part of a boot or shoe is facilitated, and the machine upon which the improved parts are to be applied is better adapted to last shoes upon lasts of any pattern selected by the manufacturer, which has sometimes been attended with much difiiculty.

The invention herein contained is an improvement on the machine represented in 2o United States Patent No. 254,617, dated March 7, 1882. The machine described in the said patent shows straps or bands, and also a chai n connected with fingers or prongs of a shanklasting device, which is so pivote/d to the 2 5 shelh as it is called, that it can only rise and fall vertically for a short distance at its front end, to adapt the finger to variations in vthickness of stock; but the said shank-lasting device is not so pivoted on the shell or so held 3o that it can oscillate in order that both prongs of its fork can rest rmly upon stock of different thickness. The object of this present invention is to support the said lasting device in such manner that it may not only oscillate 3 5 to thereby adapt each prong or extension to which a band, strap, or chain is attached so that it may rest snugly upon the stock or ma- -terial immediately under it, but so, also, that the said lasting` device to which the band,

4o strap, or chain is attached may be readily adjusted not only vertically, but also longitudinally, as will be described. I have also herein so arranged the band orstrap with relation to the lasting device or finger that the strain exerted upon the said band or strap is also exerted proportionally upon the lasting device between its acting end and its pivotal point, whereby thestrain exerted to press and fit the upper about the fore part is also made 5o efficient in pressing the lasting devicedown upon the upper and inner sole Where the same rest upon the bottom of the last. I have herein provided what I shall denominate an instep-strap, it being connected at one end with a prong located at one side of the shank of the last, and being carried across the instep of the last, or the shoe thereon, diagonally, it being then carried through a shell at the opposite side of the last, but not in the same vertical plane with the shell containing the prong to which the other end of the strap was first attached, as will be described.

Figure l is a partial vertical section of a sufficient portion ol" a lasting-machine which, taken in connection with the machine represented in the patent referred to, will enable my present improvements to be understood. Fig. 2 is a side elevation of a portion of my improved lasting-inachine. Fig. 3 is a top view of Fig. 2. Figs. 4, 5, and G are details, to be described; and Fig. 7 is a section on the line x3, Fig. 2, looking upward.

The base A, the cani-shalt A, the cam A2, cam-gear A3, pinion B,to drive the said gear, the slide-moving levers B B2, the slides B3 B3, 7 5 cross-head Bi, the longitudinally-movable slides C, which receive the stems ofthe shells D, the said shells, andthe chains D' and straps or bands D2 are substantially as in lasting-machines now in use, and substantially as in the s@ said patent.

According to one part of this inventiointhe shank-lasting device E is made as Va twopronged fork having a round shank, 2, which is placed in a socket-piece, 3, pivoted at 4 85 upon the shank-shell Ff, the stem 5 of which is adjustably held in a socket, 7, of the slide B3 by a set-screw, 6, the latter permitting the shell and its attached parts to be adjusted vertically, and also to be oscillated in a vertical 9o plane about the axis of the said stein. The shank 2 of the shank-lasting device is adjustably held in the socket-piece 3 by means of a set-screw, 8, (shown only in Figs. l and 5,) in order that the said lasting device may be adj usted horizontally, and so, also, that it may be oscillated in the said socket-piece, and preferably the shank of the shank-lasting device will be divided or separated longitudinally, in order that one prong or part of the forked Ioo end may be adjusted backward or forward independently of the other, such provision being better than the employment of two independent pieces, each having its own shank, inasmuch as by the use of the divided shank at least one socket-piece and parts for supporting it are dispensed with, and,what is of quite as much importance, space is economized, less pieces are needed, and the parts may be made stronger and stiffer. Providing the shank-lasting device, to the prongs of which the chains D are attached, (or they might be straps or bands,) with the adjustments mentioned enables boots and shoes to be lasted more snugly in the shank, notwithstanding variations in curvature of the shank.

A machine especially devised for a last of a given curvature would not need to be provided with all the adjustments herein stated; but, to enable the machine to be used equally well whatever lasts may be presented, such adjustments become very essential.

' I do not broadly claim a forked adjustable finger, irrespective of chains or bands, to exlover the last.

tend over the upper.

rIhat one of the prongs of the shank-lasting device next the fore part (see Fig. 5) is provided with a pivotal loop or link, 10, held by the same pin 12, which joins the chain D therewith. This loop receives the instepstrap a, which (see Figs. 2, 3, and 7) is carried diagonally downward and forward and about the instep of the upper on thelast, and is then led through a space in the shell D at the opposite side of the last, and under the linger b, situated nearer the toe of the last than is the shank-lasting device, the outer end of the said instep-strap being connected, as usual, with a suitable spring, a.

The chain D', composed of links of usual shape, has immovably fixed or attached to vone side of it, from its point of junction with the lasting-finger, a face or apron, c, composed of india-rubber,which is pressed closely against the upper, and by its rubbing friction on the upper draws and fits it to the last snugly;l and preferably the said apron will be corrugated as shown in Fig. 4, to increase its friction on the upper and enable the latter to be drawn or stretched more snugly To successfully draw and stretch a heavy brogan-upper closely about the last, very considerable pressure and friction must be exerted on the upper, and to do this without marring the upper is of very considerable importance. The chain gives vvery great strength, coupled with iiexibility, to conform to the shape of the last; the indiarubber face prevents the links of the chain from marring the upper, and the spring at one end of the chain permits the same to forced together with the upper between them.

The fingers b2, pivoted at 15 in shells D, have straps or bands D2 attached to their inner ends, as usual, but the said straps, instead of being passed under and over a roll, as in Patent No. 254,617, of the she1l, as it is called, in practice, are passed over a roll, b3, of a depending lug, b4, attached to or forming part of the said finger, such-plan enabling the strainy put upon the straps D2, when they are acting to stretch or fit the upper over the last, to be also utilized in forcing the inner ends of the finger snugly down upon the upper and inner sole, between them and the bottom of the last.

I do not claim achain provided with indiarubber rolls which rotate as the shoe is moved relatively to the chain, and so, also, I am aware that a belt has been provided with spring-pads of india-rubber.

I claim- 1. In a lasting-machine, a1 forked shanklasting device adapted to be adjusted in the direction of its length in its supporting socket-piece, combined with a chain, belt, or band connected with the said shank-lasting device, to operate substantially as described.

2. In a lasting-machine, a chain, belt, or band connected and combined with a forked shank lasting device, and pivoted socketpiece, in which the shank of the said shanklasting device is adapted to be adjusted longitudinally. or in the direction of its length, and also to be oscillated, substantially as described. v

8. In a lasting-machine, a forked shank- ,lasting vdevice having its shank divided longitudinally, combined with a socket-piece to receive the said divided shank and permit one part of the same to be adjusted independently of the other.

4. In a lasting-machine, a shell, D, land socket-piece, and a shank-lasting device composed of two members independently adjustable on the said socket-piece, combined with a chain or vband attached to each member, whereby the two parts of the shank -lasting device supported by the same are made independently adjustable to the dierent curvatures of different lasts, substantially as described.

, 5. In a lasting-machine, a chain having immovably affixed or applied to one side of it an india-rubber apron, c, which in operation is pressed closely against the upper, and, clinging to the same, stretches it about the last with a force measured by the pressure of the upper against the india-rubber face of the chain, all substantially as set forth.

6. In a lasting-machine, a shank-lasting device at one side of the machine, combined with theinstep-strap a, extended diagonally forward toward the toe of the last and about the instep, substantially as described.

7. In a lasting-machine, two shells and two fingers pivoted thereon, each provided with an attached roll or rest, b3, combined with a strap attached to each finger, and extended over the roll or rest of the opposite finger, to operate substantially as described.

In testimony whereof I have signed my name to this specication in the presence of two subscribing witnesses.

MATTHIAS BROOK;

Witnesses:

G. W. GREGORY,

B. J. NoYEs.

IOO

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